High-resolution Observations of Sympathetic Filament Eruptions by NVST

	High-resolution Observations of Sympathetic Filament Eruptions by NVST
	Li, Shangwei; Su, Yingna; Zhou, Tuanhui; van Ballegooijen, Adriaan; Sun, Xudong; Ji, Haisheng
刊名	ASTROPHYSICAL JOURNAL
	2017
卷号	844 期号:1 页码:70-
英文摘要	We investigate two sympathetic filament eruptions observed by the New Vacuum Solar Telescope on 2015 October 15. The full picture of the eruptions is obtained from the corresponding Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) observations. The two filaments start from active region NOAA 12434 in the north and end in one large quiescent filament channel in the south. The left filament erupts first, followed by the right filament eruption about 10 minutes later. Clear twist structure and rotating motion are observed in both filaments during the eruption. Both eruptions failed, since the filaments first rise up, then flow toward the south and merge into the southern large quiescent filament. We also observe repeated activations of mini filaments below the right filament after its eruption. Using magnetic field models constructed based on SDO/ HMI magnetograms via the flux rope insertion method, we find that the left filament eruption is likely to be triggered by kink instability, while the weakening of overlying magnetic fields due to magnetic reconnection at an X-point between the two filament systems might play an important role in the onset of the right filament eruption.
语种	英语
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/17474]
专题	中国科学院紫金山天文台
推荐引用方式 GB/T 7714	Li, Shangwei,Su, Yingna,Zhou, Tuanhui,et al. High-resolution Observations of Sympathetic Filament Eruptions by NVST[J]. ASTROPHYSICAL JOURNAL,2017,844(1):70-.
APA	Li, Shangwei,Su, Yingna,Zhou, Tuanhui,van Ballegooijen, Adriaan,Sun, Xudong,&Ji, Haisheng.(2017).High-resolution Observations of Sympathetic Filament Eruptions by NVST.ASTROPHYSICAL JOURNAL,844(1),70-.
MLA	Li, Shangwei,et al."High-resolution Observations of Sympathetic Filament Eruptions by NVST".ASTROPHYSICAL JOURNAL 844.1(2017):70-.